Headlight attachment



A. F. DE VIGAN.

HEADLIGHT ATTACHMENT.

APPLICATION FILED ocr. 1a. 1920.

Patented Aug. 30, 1921.

WW M1 hm PATENT OFFICE. o

ANDRE F. DE VIGAN, OF DETROIT, MICHIGAN.

HEADIIIGHT ATTACHMENT.

Application filed October 18, 1920.

T 0 all whom it may concern:

Be it known that I, ANnmi F. DE VIGAN, a citizen of the United States of America, residing at 621 Mullett St, in the city of Detroit and county of Wayne, Michigan, have invented certain new and useful Improvements in Headlight Attachments, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to head light attachments such as are employed upon motor vehicle head lights to cut off such glaring rays as may encounter the eye and interfere with the vision of an approaching driver or pedestrian. p

. It is the object of the invention to provide a head light attachment of the described character having a substantially vertical shield portion in the axial plane of the head light to control the lateral deflection of the rays.

In the drawings Figure l is a perspective view of the improved attachment;

Fig. 2-is a front view of the same;

Fig. Sis a vertical sectional-viewof the head light showing the attachment applied thereto;

Referring more in detailto the drawings, the improved attachment comprises an opaque dished member, preferablyof sheet metal having a marginal flange B, the lower portion-of said member being cut away inside of said flange producing an opening C, below the center horizontal plane of, the. attachment. Centrally of said member, there is left a semi-circular portion D which projects downwardly within the opening C. In the vertical :central plane of the attachment there is provided a shield member E connecting the depending portion D and the rim B. It is preferred to form said member integral with the body of the attachment and to employ for thatpurpose a portion of the material struck out in forming the opening 0. Thus an approximately circular portion of the material is struck out in forming said opening and is left connected respectively with the rim B and the segment D by neck portion F and said circular portion is then folded diametrically-to bring its two halves into proximity in the central vertical plane of the attachment. Thus there is produced a substantially semi-circa lar shield member extending in the central Specification of Letters Patent.

Patented Aug; 30, 1921.

Serial No. 417,629.

vertical plane of the attachment between the rim and center portion of the latter, bisecting the opening C, said member being connected respectively to the rim B and segnaent D at the extremities of its diametrical e go.

The described device may be secured in front of the head light in any desired manner. Preferably, however, attachment of the device is effected as is shown in Fig. 3 wherein G indicates an ordinary head light having the bulb I-I, reflector I, and closure J, the latter carrying the glass J. The flange B is proportioned to be engaged betweenthe edge portion of the closure J and the body ofthe head light, thus properly positioning the attachment upon the head light.

When the described device is in use, the brilliancy of the head light is so controlled that substantially all of the rays above the central horizontalplane are intercepted by the closed upper portion of the attachment and deflected at a downward angle through the opening C, none of the rays having such an elevation as to encounter the eye of an approaching driver or pedestrian and interfere with his vision. It has been found that there is sometendency for rays reflecting from the lower portion of the head light to project laterally at such an angle as to possibly encounter the eye of a driver or pedestrian'approaching at an angle to the course traveled by the vehicle equipped with the' attachment. This defect applicant has eliminated by providing in the central plane of the attachment the shield member E which intercepts such direct rays as are objectionable. The laterally deflected glare producing rays intercepted by the front and rear portionsof the shield member E'are less concentrated than those which encounter the central portion of said shield. For this reason it is desirable to extend the center portion of the shield to agreater height than said end portions and to gradually reduce the height toward the latter portions as is best accomplished by the disclosed semi-circular shape of said shield.

What I claim is:

1. In a device of the character described, the combination with a head light, of an anti-glare attachment therefor comprising a substantially imperforate opaque member secured to the front of the headlight, exteriorly thereof, cutting off radiation from the upper portion of the head light and having an aperturcd lower portion and having a shield in its central vertical plane within said aperture for interceptinglaterally inclined rays. 4

2. In a device of the character described, the combination with a head light, of an anti-glare attachment therefor, comprising a substantially opaque member secured to the front of said head light exteriorly thereof having a substantially imperforate portion above the central horizontal plane of the head light and formed with an opening below said plane and with an integral shield bisecting said opening and serving to intercept laterally inclined rays.

3. In a device of the character described, the combination with a. head light, of an anti-glare attachment therefor comprising a substantially opaque member secured to the front of the head light and having a substantially imperforate portion above the cen tral horizontal plane of the head light and an apertured portion below said plane, a portion of said member being struck up vertically within said opening to form a llGlCl intercepting laterally projected downwardly inclined rays.

In a device of the character described, the combination with a head light of an anti-glare attachment therefor, comprising a substantially opaque dished member marginally flanged for engagement with the head light, the upper portion of said mem her being substantially imperforate and an opening for the emission of light formed in the lower portion of said member above said flange, a. shield for intercepting lateral rays being integrally struck from said member within said opening between said marginal flange and said imperforate upper portion.

5. As an article of manufacture an anti glare attachment for head. lights comprising a substantially opaque dished members having a substantially imperforate upper portion and an apertured lower portion and having ashield vertically struck up from said aperture.

6. As an article of manufacture an antiglare attachment for head lights comprising,

an opening above said marginal flange, a

segmental portion depending into said open ing bemg formed centrally of said member and a vertical shield forinterceptmg lateral rays located in the vertical axial plane of said attachment and integrally connecting said marginal flange and segmental extension. 7

8. As an article of manufacture, an antiglare attachment for head lights comprising a substantially opaque dished member having a substantially imperforateupper portion and a marginal flange, and a substantially semi-circular shield integrally connecting said flange and upper portion, comprising a double thickness of material formed by bending diametrically inward a circular bridge between said flange and upper portion.

9. In a device of the character described, the combination with a head light, of an anti-glare attachment therefor comprising a substantially opaque dished member secured to the front of the head light and having a substantially imperforateiportion above the central horizontal plane of the head light,'and an apertured lower portion, said imperforate portion having a central downward extension dished toward the head light, and having its rear edgein a vertical plane substantially transverse to the axis of the attachment; 1

In testimony whereof I affix my signature.

ANDRE F. on VIGAN. 

